FR3084715B1 - Valve system with isolation device - Google Patents

Valve system with isolation device Download PDF

Info

Publication number
FR3084715B1
FR3084715B1 FR1908868A FR1908868A FR3084715B1 FR 3084715 B1 FR3084715 B1 FR 3084715B1 FR 1908868 A FR1908868 A FR 1908868A FR 1908868 A FR1908868 A FR 1908868A FR 3084715 B1 FR3084715 B1 FR 3084715B1
Authority
FR
France
Prior art keywords
pipe
isolation device
valve
upstream
valve system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
FR1908868A
Other languages
French (fr)
Other versions
FR3084715A1 (en
Inventor
Hailiang Liu
Tao Mu
Shoujun Zhao
Zaixiao Zhang
Lei Wang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Reliable Mech Equipment Co Ltd
Original Assignee
Jiangsu Reliable Mech Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Reliable Mech Equipment Co Ltd filed Critical Jiangsu Reliable Mech Equipment Co Ltd
Publication of FR3084715A1 publication Critical patent/FR3084715A1/en
Application granted granted Critical
Publication of FR3084715B1 publication Critical patent/FR3084715B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/12Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/16Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member
    • F16K31/165Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member the fluid acting on a diaphragm
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/12Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • F16K31/1223Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being acted upon by the circulating fluid
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00Safety valves; Equalising valves, e.g. pressure relief valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/40Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint
    • F16K17/406Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint the fracturing member being a generally elongated member, e.g. rod or wire, which is directly connected to a movable valve member, the breaking or buckling of the elongated member allowing the valve member to move to a closed or open position
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/08Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for providing a large discharge passage
    • F16K17/082Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for providing a large discharge passage with piston
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/08Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for providing a large discharge passage
    • F16K17/085Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for providing a large discharge passage with diaphragm
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/08Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for providing a large discharge passage
    • F16K17/087Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for providing a large discharge passage with bellows
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/12Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/12Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/126Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/12Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/126Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
    • F16K31/1266Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like one side of the diaphragm being acted upon by the circulating fluid
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K35/00Means to prevent accidental or unauthorised actuation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/44Mechanical actuating means
    • F16K31/52Mechanical actuating means with crank, eccentric, or cam
    • F16K31/528Mechanical actuating means with crank, eccentric, or cam with pin and slot
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/1624Destructible or deformable element controlled
    • Y10T137/1632Destructible element
    • Y10T137/1669Tensile or sheer pin or bolt
    • Y10T137/1677Pressure causes pin or bolt to destruct
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/86485Line condition change responsive release of valve

Abstract

Système de valve avec dispositif d’isolation Système de valve comprenant une valve de marche/arrêt (10) commandant la circulation dans une conduite en amont (41) et une conduite en aval (42) de la valve (10) ; une tige de valve (11) raccordée avec un mécanisme d’actionnement de marche/arrêt (20) ; la conduite en amont (41) étant raccordée avec un mécanisme de déclencheur pilote (30), adapté pour déclencher le mécanisme (20), via un tuyau de communication (50) lui-même raccordé avec le mécanisme (20), dans lequel un dispositif d’isolation (60) agencé sur le tuyau (50) isole ce dernier dans une partie en amont et en aval via un composant de détection de pression, et peut détecter une pression de la conduite en amont (41) et la ramener au mécanisme de déclencheur pilote (30), provoquant une action dudit mécanisme (30), et un fluide est versé entre la partie en aval du tuyau (50) et le mécanisme de déclencheur pilote (30). Figure pour l’abrégé : Fig. 1.Valve System with Isolation Device A valve system comprising an on/off valve (10) controlling flow in a line upstream (41) and a line downstream (42) of the valve (10); a valve stem (11) connected with an on/off actuation mechanism (20); the upstream pipe (41) being connected with a pilot trigger mechanism (30), adapted to trigger the mechanism (20), via a communication pipe (50) itself connected with the mechanism (20), in which a isolation device (60) arranged on the pipe (50) isolates the latter in an upstream and downstream part via a pressure sensing component, and can detect a pressure of the upstream pipe (41) and return it to the pilot trigger mechanism (30), causing said mechanism (30) to act, and fluid is poured between the downstream portion of the pipe (50) and the pilot trigger mechanism (30). Figure for abstract: Fig. 1.

FR1908868A 2018-08-03 2019-08-02 Valve system with isolation device Active FR3084715B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810876623.3A CN108825833A (en) 2018-08-03 2018-08-03 A kind of valve system with isolating device
CN2018108766233 2018-08-03

Publications (2)

Publication Number Publication Date
FR3084715A1 FR3084715A1 (en) 2020-02-07
FR3084715B1 true FR3084715B1 (en) 2022-09-23

Family

ID=64153474

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1908868A Active FR3084715B1 (en) 2018-08-03 2019-08-02 Valve system with isolation device

Country Status (7)

Country Link
US (1) US11149873B2 (en)
CN (1) CN108825833A (en)
DE (1) DE102019120622A1 (en)
FR (1) FR3084715B1 (en)
GB (1) GB2576086B (en)
NL (1) NL2023595B1 (en)
RU (1) RU2718945C1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020103534A1 (en) * 2018-11-20 2020-05-28 江苏瑞朗博机械设备有限公司 Fusible fireproof emergency shut-off valve
CN110878863B (en) * 2019-11-21 2021-06-04 三峡大学 Automatic opening and closing system for pipeline valve
CN113605857A (en) * 2021-08-23 2021-11-05 瀚中(南京)科技有限公司 High-low pressure pilot valve and high-low pressure emergency cut-off device for pipeline
CN114294468B (en) * 2022-01-11 2022-09-13 邳州宏盛液压元件有限公司 Locking device for operating rod of reversing valve

Family Cites Families (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1566850A (en) * 1925-12-22 Contbolliho appabaefs
US1934548A (en) * 1928-12-24 1933-11-07 Glen P Cowan Pressure responsive device
US1975656A (en) * 1931-06-18 1934-10-02 Ruth M Hook Valve mechanism
US2314218A (en) * 1942-09-03 1943-03-16 Ingersoll Rand Co Safety device
GB937068A (en) * 1959-01-26 1963-09-18 Chemetron Corp Intermittent vacuum regulator
US3074435A (en) * 1959-09-28 1963-01-22 Gen Electric Fail-safe pressure sensing device
US3481357A (en) * 1966-05-05 1969-12-02 Pneumo Dynamics Corp Pressure regulator assembly
AT286803B (en) * 1968-06-11 1970-12-28 Hermann E Mueller Metallwarenf Dual circuit brake system, in particular for motor vehicles
US3650506A (en) * 1970-06-26 1972-03-21 Us Industries Inc Rotary valve with line pressure connected actuator
US3730214A (en) * 1971-09-24 1973-05-01 Walworth Co Rotary valve pressure regulating system
US3788341A (en) * 1972-05-04 1974-01-29 Southwestern Mfg Co Pressure responsive valve system
US4109512A (en) * 1976-08-30 1978-08-29 Ledeen Flow Control Systems Linebreak detection system
AT372448B (en) * 1977-10-26 1983-10-10 Lang Apparatebau Gmbh DEVICE FOR PROTECTING DRINKING WATER PIPES AGAINST RETURNING HOT WATER
US4361165A (en) * 1980-08-07 1982-11-30 Exxon Research And Engineering Co. Breakaway pipe coupling with automatically closed valves
US4724857A (en) * 1986-11-17 1988-02-16 Taylor Julian S Pressure relief valve
CN2117514U (en) 1991-11-21 1992-09-30 郭真起 Guide valve with tubular diaphragm for controlling side stream
AU667629B2 (en) * 1993-05-27 1996-03-28 Sumitomo Electric Industries, Ltd. Changeover valve and flow control valve assembly having the same
DE19500475C2 (en) * 1995-01-10 2001-09-27 Schatz Thermo Gastech Gmbh Shut-off or throttle valve with rotatable valve flap
US6367498B1 (en) * 2000-01-06 2002-04-09 Bs&B Safety Systems, Inc. Pressure relief apparatus
US6651686B2 (en) * 2001-09-09 2003-11-25 Gary W. Scantlin Valve actuator system
US6651687B2 (en) * 2002-02-08 2003-11-25 Taylor Innovations, L.L.C. Pressure relief system with clutch activated valve
US6666230B1 (en) * 2002-05-31 2003-12-23 Taylor Innovations, L.L.C. Pressure relief system with trigger activated valve
US6929026B1 (en) * 2003-03-28 2005-08-16 Joseph Wilfred Arlinghaus, Jr. Sanitary liquid pressure regulator
GB2401164B (en) * 2003-04-29 2006-01-18 Abb Offshore Systems Ltd Pipeline protection system
RU2280242C1 (en) * 2005-02-17 2006-07-20 Государственное образовательное учреждение высшего профессионального образования "Тюменский государственный нефтегазовый университет" Diaphragm unit for pressure gage
US7438087B1 (en) * 2005-09-30 2008-10-21 Taylor Innovations, L.L.C. Overpressure rotary valve assembly with locking pin and collapsible member
AU2008228011B2 (en) * 2007-03-22 2012-02-16 Mueller International, Llc Pilot valve for a pressure reducing valve
NO332898B1 (en) * 2008-05-07 2013-01-28 Bech Wellbore Flow Control As Flow regulator device for regulating a fluid flow between a petroleum reservoir and a rudder body
EP2169690B1 (en) * 2008-09-24 2012-08-29 ABB Technology AG Pressure compensator
US9297465B2 (en) * 2012-10-01 2016-03-29 Emerson Process Management Regulator Technologies, Inc. Pilot-operated regulator with balanced port
CN203223605U (en) 2013-02-06 2013-10-02 张凡 Diaphragm pilot valve capable of detecting pressure and flow rate
CN104251324A (en) 2013-06-28 2014-12-31 天津市中天电子发展有限公司 Pilot valve
TWI567347B (en) * 2013-10-18 2017-01-21 Grand Mate Co Ltd Gas regulator
CN105318091A (en) * 2015-02-17 2016-02-10 刘海亮 Automatic valve triggered by compression bar destabilizing to act under overpressure working condition
CN105318057A (en) * 2015-03-23 2016-02-10 刘海亮 Novel membrane-assisting type compression bar instability trigger type valve assembly
CN106499864B (en) * 2015-09-06 2021-02-09 费希尔调压器(上海)有限公司 Stationary bar pin assembly for stabilizing air flow and pressure regulation of fluid regulators
CN106594338B (en) * 2015-11-02 2017-11-17 江苏瑞朗博机械设备有限公司 By the automatic valve of strut buckling trigger action during superpressure
CN205371730U (en) * 2015-11-02 2016-07-06 江苏瑞朗博机械设备有限公司 By automatic valve of depression bar unstability trigger action during superpressure
CN205534510U (en) * 2016-03-30 2016-08-31 江苏瑞朗博机械设备有限公司 Automatic valve by depression bar unstability trigger action suitable for low pressure operating mode
CN106594365B (en) * 2016-03-30 2017-12-15 江苏瑞朗博机械设备有限公司 Suitable for the automatic valve by strut buckling trigger action of low pressure operating mode
CN207333856U (en) * 2017-05-16 2018-05-08 江苏瑞朗博机械设备有限公司 Diaphragm type pilot automatic valve based on strut buckling triggering
CN107061815A (en) * 2017-05-16 2017-08-18 江苏瑞朗博机械设备有限公司 The diaphragm type pilot automatic valve triggered based on strut buckling
CN207661192U (en) * 2017-06-16 2018-07-27 江苏瑞朗博机械设备有限公司 The automatic valve system of the single-action pneumatic executor driving of duplicate protection can be provided
CN107084277B (en) * 2017-06-30 2019-05-21 江苏瑞朗博机械设备有限公司 Buffering type pilot automatic valve based on strut buckling triggering
CN207661195U (en) * 2017-06-30 2018-07-27 江苏瑞朗博机械设备有限公司 Buffering type pilot automatic valve based on strut buckling triggering
CN207246497U (en) * 2017-09-30 2018-04-17 江苏瑞朗博机械设备有限公司 A kind of natural gas wellhead emergency shutoff device
CN107504234B (en) * 2017-09-30 2019-05-21 江苏瑞朗博机械设备有限公司 A kind of natural gas wellhead emergency shutoff device
CN208703206U (en) * 2018-08-03 2019-04-05 江苏瑞朗博机械设备有限公司 A kind of valve system with isolating device

Also Published As

Publication number Publication date
NL2023595A (en) 2020-02-10
RU2718945C1 (en) 2020-04-15
GB2576086B (en) 2020-12-16
US11149873B2 (en) 2021-10-19
GB2576086A (en) 2020-02-05
CN108825833A (en) 2018-11-16
FR3084715A1 (en) 2020-02-07
DE102019120622A1 (en) 2020-02-06
NL2023595B1 (en) 2021-10-14
GB201908273D0 (en) 2019-07-24
US20200041027A1 (en) 2020-02-06

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